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Data Scientist

Remote, Europe·Added 2 months ago

JustMarkets

72 open roles

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Overview

Job details

Fully remote
Per the ad.

Requirements

Have the right to work in Spain
JustMarkets doesn't mention sponsorship, but this role may fit the Digital nomad visa.
Have 3+ years of experience
Mid-level role.
University degree
“Degree (MSc or PhD preferred) in a highly quantitative field: Mathematics, Physics, Statistics, Quantitative Finance, or Computer Science” — per the ad.

Requirements

Nice to have

Experience in CFD, Crypto CEX, Prop Trading Firm, or Hedge Fund
Degree (MSc or PhD preferred) in a highly quantitative field: Mathematics, Physics, Statistics, Quantitative Finance, or Computer Science
Understanding of Asset pricing models (e.g., Black-Scholes, local volatility models, Greeks management)
Knowledge of the MetaTrader platforms (MT4/MT5)
Experience with AI (Claude.io, Copilot, Codex)

The role

We are looking for a Data Scientist to become the data-driven backbone of our Trading Core and Risk Tech squads. In a high-frequency trading environment processing billions in volume, success is defined by precision.

In this role, you will research, model, and validate the core data-driven models that drive our pricing engines, automated market-making algorithms, risk management frameworks (A/B/C-book optimization), and liquidation mechanics. You will sit at the intersection of statistics, data science, and high-performance software engineering, working directly with Core Product Managers and engineering teams to turn complex financial data into proprietary algorithmic advantages.

What you'll do

Research, design, and prototype behavioral, risk, and toxicity-scoring models for client and partner-flow segmentation
Build backtesting and monitoring frameworks to validate models, signals, and hypotheses across data of varying granularity
Detect early risk signals, anomalies, and regime shifts in market and client behavior, including probability of critical capital loss
Develop explainable risk signals and labels for the R&D team, and long-term client value/risk models with forecasting
Conduct research and hypothesis-testing on client economics, flow quality, and model performance

Requirements

3+ years of experience as a Data Scientist / Quantitative Researcher
Exceptional knowledge of probability theory, statistics, time-series analysis, and financial mathematics
Advanced proficiency in Python (NumPy, Pandas, SciPy, Scikit-learn, Statsmodels) for data analysis, modeling, and backtesting
Solid experience with Machine Learning
Deep understanding of market microstructure, order book dynamics, risk metrics (VaR, Expected Shortfall), and margin/liquidation mechanisms
SQL skills and experience working with large-scale historical market data (tick data, order logs)
Strong logical thinking, initiative, and well-developed communication skills

We offer

20 paid vacation days per year
10 paid sick leave days per year
Public holidays as per the company's approved Public holiday list
Medical insurance
Opportunity to work remotely
Professional education budget
Language learning budget
Wellness budget (gym membership, sports gear and related expenses)

Hiring process

Application review, one or more interviews, then an offer; described as fast and easy 1 interview

Applications are reviewed quickly and candidates are kept informed at every step.

About JustMarkets

JustMarkets is a global fintech company operating in the multi-asset brokerage space, providing retail and institutional clients with access to trading in forex, commodities, indices, and shares. The company has grown into an international brand with a significant presence across multiple regions, including Europe, Asia, and Latin America, and is known for its proprietary trading platforms and customer-centric approach.

In Spain, JustMarkets has established a dedicated hub to support its growing client base and expand its European footprint. The company's Spain office is a key part of its global operations, offering roles in engineering, product, design, marketing, and finance. For international professionals, JustMarkets presents opportunities to work in a fast-paced, multicultural environment, with a strong emphasis on technology and data-driven decision-making, making it an attractive option for those looking to build a career in the fintech sector in Spain.

Industry: Fintech
Founded: 2012
Employees: 500–1,000
Headquarters: Limassol, Cyprus
In Spain: Madrid
Website: justmarkets.com

Good to know if you are moving

The company's global HQ is in Limassol, Cyprus, but its Spain office in Madrid is a key hub for European operations, offering a range of roles in tech, product, and marketing.
JustMarkets is a global fintech company, so English is likely the working language, making it accessible for international professionals.
The company offers a modern tech stack and data-driven approach, which can be appealing for engineers and data specialists.
Roles in Spain span a wide range of functions, from engineering and design to finance and HR, indicating a multi-disciplinary environment.
As a regulated broker, the company offers a stable and compliance-focused work environment, which is a plus for professionals from the financial sector.

All open roles at JustMarkets